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2026-05-06 - 09:38
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Wed May 06, 2026 01:02:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2612499219193,18cyclictest3543-21CPU34
2612499219193,18cyclictest3543-21CPU34
2612499219193,18cyclictest3543-21CPU34
2612499218193,12cyclictest0-21swapper/422:00:0034
2612499218193,12cyclictest0-21swapper/422:00:0034
2614999216210,4cyclictest2327-21qemu-system-x8623:15:1516
2614999216210,4cyclictest2327-21qemu-system-x8623:15:1516
2614999216210,4cyclictest2327-21qemu-system-x8623:15:1516
2612499210193,13cyclictest3542-21CPU34
2612499210193,13cyclictest3542-21CPU34
2612499209196,11cyclictest0-21swapper/421:41:2934
2612499209196,11cyclictest0-21swapper/421:41:2934
2613799205195,7cyclictest0-21swapper/1421:31:586
2613799205195,7cyclictest0-21swapper/1421:31:586
2612699199163,13cyclictest0-21swapper/519:35:3935
2612699199163,13cyclictest0-21swapper/519:35:3935
2612499198176,18cyclictest0-21swapper/423:10:2034
2612499198176,18cyclictest0-21swapper/423:10:2034
2612499198176,18cyclictest0-21swapper/423:10:2034
2612499195169,16cyclictest0-21swapper/421:20:0634
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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